Nest Wall Diffuser Refill - HolidayEnhance A Room with Our Nest Wall Diffuser Refills! Simply insert one refill into your NEST New York Wall Diffuser (sold separately), to enjoy approximately 30 days of uninterrupted fragrance. Scent your world with Holiday, an iconic blend of pomegranate, mandarin orange, pine, cloves, and cinnamon with a hint of vanilla and amber for the quintessential aroma of the season. The Nest Wall Diffuser Refill Assorted Fragrances will be loved for their easy